Now, five years later, signs of frothiness, if not outright bubbles, are reappearing in housing markets in Switzerland, Sweden, Norway, Finland, France, Germany, Canada, Australia, New Zealand, and, back for an encore, the UK (well, London). In emerging markets, bubbles are appearing in Hong Kong, Singapore, China, and Israel, and in major urban centers in Turkey, India, Indonesia, and Brazil.
Signs that home prices are entering bubble territory in these economies include fast-rising home prices, high and rising price-to-income ratios, and high levels of mortgage debt as a share of household debt. In most advanced economies, bubbles are being inflated by very low short- and long-term interest rates. Given anemic GDP growth, high unemployment, and low inflation, the wall of liquidity generated by conventional and unconventional monetary easing is driving up asset prices, starting with home prices. - Business Insider
Nouriel Roubini is an American economist. He teaches at New York University's Stern School of Business and is the chairman of Roubini Global Economics.